Question

我第一次学习android所以我开始使用视频播放器。我已经正确编写了代码，但我不知道哪里出错了。

问题是我隐藏导航栏但导航栏的阴影正在显示，导航栏的后退按钮不起作用。某些视频无法全屏播放。它只播放屏幕的一半

这是我的代码

public class VideoList extends AppCompatActivity {
File root;
private ArrayList<File> fileList = new ArrayList<File>();
ListView videolist;
String[] list;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video_list);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    Bundle extras = getIntent().getExtras();
    String dir = extras.getString("Dir");
    root = new File(dir);
    list = new String[3];
    File listFile[] = root.listFiles();
    videolist = (ListView) findViewById(R.id.videolist);
    if (listFile != null && listFile.length > 0) {

        for (int i = 0; i < listFile.length; i++) {

            if (listFile[i].getName().endsWith(".mp4")
                    || listFile[i].getName().endsWith(".avi")
                    || listFile[i].getName().endsWith(".mpeg")
                    || listFile[i].getName().endsWith(".3gp") || listFile[i].getName().endsWith(".mkv")) {
                fileList.add(listFile[i]);
                String filePath = listFile[i].getAbsolutePath();
                File file = new File(filePath);
            }
        }
    }
    list = new String[fileList.size()];
    for (int j = 0; j < fileList.size(); j++) {

        String temp = fileList.get(j).getAbsolutePath();
        list[j] = temp;
        Log.v("bbb", j + " " + list[j]);
    }
    Ticket_adapter adapter = new Ticket_adapter(VideoList.this, list);
    videolist.setAdapter(adapter);
    videolist.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Intent ii = new Intent(VideoList.this, ViewVideo.class);
            ii.putExtra("Fullpath", fileList.get(position).getAbsolutePath());
            startActivity(ii);
        }
    });
}

}


class Ticket_adapter extends ArrayAdapter<String> {
Context context;
String[] list;
Bitmap bMap;
String aaaaa;
LayoutInflater inflater;

public Ticket_adapter(VideoList context, String[] list) {
    super(context, R.id.list_item, list);
    this.context = context;
    this.list = list;


}


@Override
public View getView(int position, View convertView, ViewGroup parent) {
    if (convertView == null) {
        Log.v("Aa", "" + list[position]);
        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.list_item, null);

    }
    TextView idtxt = (TextView) convertView.findViewById(R.id.gool);
    TextView dur = (TextView) convertView.findViewById(R.id.myImageViewText);
    ImageView videol = (ImageView) convertView.findViewById(R.id.abcd);
    File abc = new File(list[position]);

    idtxt.setText(abc.getName());
    Bitmap bMap;
    bMap = ThumbnailUtils.createVideoThumbnail(list[position], MediaStore.Video.Thumbnails.MICRO_KIND);
    try {
        videol.setImageBitmap(bMap);

    } catch (Exception e) {
        Log.v("DDD", " " + list[position]);
        e.printStackTrace();
    }

    MediaPlayer mp = MediaPlayer.create(context, Uri.parse(list[position]));
    int duration = mp.getDuration();
    mp.release();
/*convert millis to appropriate time*/
    if (TimeUnit.MICROSECONDS.toHours(duration) == 0) {
        aaaaa = String.format("%d:%d",
                TimeUnit.MILLISECONDS.toMinutes(duration),
                TimeUnit.MILLISECONDS.toSeconds(duration) -
                                 TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration)));
    } else {
        aaaaa = String.format("%d:%d:%d", TimeUnit.MILLISECONDS.toHours(duration),
                TimeUnit.MILLISECONDS.toMinutes(duration) % 60,
                TimeUnit.MILLISECONDS.toSeconds(duration) -
                        TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(duration)));
    }
    Log.v("ads", "" + aaaaa);

    dur.setText(aaaaa);

    return convertView;

}
 }

这里我附上了我的视频播放器的截图 enter image description here 这里在底部和导航栏阴影正在显示。我想删除那个shodaow。导航栏后退按钮不起作用和我的ViewVideo.java

public class ViewVideo extends AppCompatActivity {
String dir;

@Override
protected void onCreate(Bundle savedInstanceState) {

    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setTheme(android.R.style.Theme_NoTitleBar_Fullscreen);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_view_video);
    Bundle extras = getIntent().getExtras();
    dir = extras.getString("Fullpath");
    File aa = new File(dir);
    Log.v("AAAA", dir);
    VideoView videoView = (VideoView) findViewById(R.id.videoView1);
    try {
        MediaController mediaController = new MediaController(this);
        mediaController.setAnchorView(videoView);
        Uri uri = Uri.parse(dir);
        videoView.setMediaController(mediaController);
        videoView.setVideoURI(uri);
        videoView.requestFocus();
        videoView.start();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    if (hasFocus) {

        View decorView = getWindow().getDecorView();
        decorView.setSystemUiVisibility(
                View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                        | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                        | View.SYSTEM_UI_FLAG_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
    }
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
}

}

此处在底部和导航栏上显示阴影。我想删除该阴影。导航栏中的后退按钮不起作用。请解决我的问题我上周得到解决方案。

提前致谢

视频无法在Android中以全屏模式播放

0 个答案: